The North American International Auto Show 2013

The North American International Auto Show 2013

The North American International Auto Show (NAIAS) 2013

Bloomberg

Hyundai Motor Corp. vehicles are displayed during the 2013 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Tuesday, Jan. 15, 2013. The Detroit auto show runs through Jan. 27 and will display over 500 vehicles, representing the most innovative designs in the world. Photographer: David Paul Morris/Bloomberg via Getty Images

Hyundai Motor Corp. vehicles are displayed during the 2013 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Tuesday, Jan. 15, 2013. The Detroit auto show runs through Jan. 27 and will display over 500 vehicles, representing the most innovative designs in the world. Photographer: David Paul Morris/Bloomberg via Getty Images

The North American International Auto Show (NAIAS) 2013

Bloomberg

The Fiat SpA Abarth vehicle is displayed during the 2013 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Tuesday, Jan. 15, 2013. The Detroit auto show runs through Jan. 27 and will display over 500 vehicles, representing the most innovative designs in the world. Photographer: David Paul Morris/Bloomberg via Getty Images

The Fiat SpA Abarth vehicle is displayed during the 2013 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Tuesday, Jan. 15, 2013. The Detroit auto show runs through Jan. 27 and will display over 500 vehicles, representing the most innovative designs in the world. Photographer: David Paul Morris/Bloomberg via Getty Images

The North American International Auto Show (NAIAS) 2013

Bloomberg

A Hyundai Motor Corp. vehicle is displayed during the 2013 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Tuesday, Jan. 15, 2013. The Detroit auto show runs through Jan. 27 and will display over 500 vehicles, representing the most innovative designs in the world. Photographer: David Paul Morris/Bloomberg via Getty Images

A Hyundai Motor Corp. vehicle is displayed during the 2013 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Tuesday, Jan. 15, 2013. The Detroit auto show runs through Jan. 27 and will display over 500 vehicles, representing the most innovative designs in the world. Photographer: David Paul Morris/Bloomberg via Getty Images

The North American International Auto Show (NAIAS) 2013

Bloomberg

The Hyundai Motor Corp. Genesis Coupe is displayed during the 2013 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Tuesday, Jan. 15, 2013. The Detroit auto show runs through Jan. 27 and will display over 500 vehicles, representing the most innovative designs in the world. Photographer: David Paul Morris/Bloomberg via Getty Images

The Hyundai Motor Corp. Genesis Coupe is displayed during the 2013 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Tuesday, Jan. 15, 2013. The Detroit auto show runs through Jan. 27 and will display over 500 vehicles, representing the most innovative designs in the world. Photographer: David Paul Morris/Bloomberg via Getty Images

The North American International Auto Show (NAIAS) 2013

Bloomberg

The front of a Bayerische Motoren Werke AG (BMW) Z4 sDrive 35is convertible vehicle is seen during the 2013 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Tuesday, Jan. 15, 2013. The Detroit auto show runs through Jan. 27 and will display over 500 vehicles, representing the most innovative designs in the world. Photographer: David Paul Morris/Bloomberg via Getty Images

The front of a Bayerische Motoren Werke AG (BMW) Z4 sDrive 35is convertible vehicle is seen during the 2013 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Tuesday, Jan. 15, 2013. The Detroit auto show runs through Jan. 27 and will display over 500 vehicles, representing the most innovative designs in the world. Photographer: David Paul Morris/Bloomberg via Getty Images

The North American International Auto Show (NAIAS) 2013

Bloomberg

Attendees visit the Tesla Motors Inc. booth during the 2013 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Tuesday, Jan. 15, 2013. The Detroit auto show runs through Jan. 27 and will display over 500 vehicles, representing the most innovative designs in the world. Photographer: David Paul Morris/Bloomberg via Getty Images

Attendees visit the Tesla Motors Inc. booth during the 2013 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Tuesday, Jan. 15, 2013. The Detroit auto show runs through Jan. 27 and will display over 500 vehicles, representing the most innovative designs in the world. Photographer: David Paul Morris/Bloomberg via Getty Images

The North American International Auto Show (NAIAS) 2013

Bloomberg

An attendee views the interior of a Daimler AG Mercedes Benz E 350 Cabriolet vehicle during the 2013 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Tuesday, Jan. 15, 2013. The Detroit auto show runs through Jan. 27 and will display over 500 vehicles, representing the most innovative designs in the world. Photographer: David Paul Morris/Bloomberg via Getty Images

An attendee views the interior of a Daimler AG Mercedes Benz E 350 Cabriolet vehicle during the 2013 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Tuesday, Jan. 15, 2013. The Detroit auto show runs through Jan. 27 and will display over 500 vehicles, representing the most innovative designs in the world. Photographer: David Paul Morris/Bloomberg via Getty Images

The North American International Auto Show (NAIAS) 2013

Bloomberg

A Tesla Motors Inc. vehicle is displayed during the 2013 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Tuesday, Jan. 15, 2013. The Detroit auto show runs through Jan. 27 and will display over 500 vehicles, representing the most innovative designs in the world. Photographer: David Paul Morris/Bloomberg via Getty Images

A Tesla Motors Inc. vehicle is displayed during the 2013 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Tuesday, Jan. 15, 2013. The Detroit auto show runs through Jan. 27 and will display over 500 vehicles, representing the most innovative designs in the world. Photographer: David Paul Morris/Bloomberg via Getty Images

The North American International Auto Show (NAIAS) 2013

Bloomberg

The interior of a 2014 Chevrolet Silverado truck is seen during the 2013 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Tuesday, Jan. 15, 2013. The Detroit auto show runs through Jan. 27 and will display over 500 vehicles, representing the most innovative designs in the world. Photographer: David Paul Morris/Bloomberg via Getty Images

The interior of a 2014 Chevrolet Silverado truck is seen during the 2013 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Tuesday, Jan. 15, 2013. The Detroit auto show runs through Jan. 27 and will display over 500 vehicles, representing the most innovative designs in the world. Photographer: David Paul Morris/Bloomberg via Getty Images

The North American International Auto Show (NAIAS) 2013

Bloomberg

The Bayerische Motoren Werke AG (BMW) Mini John Cooper Works Paceman vehicle is displayed during the 2013 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Tuesday, Jan. 15, 2013. The Detroit auto show runs through Jan. 27 and will display over 500 vehicles, representing the most innovative designs in the world. Photographer: David Paul Morris/Bloomberg via Getty Images

The Bayerische Motoren Werke AG (BMW) Mini John Cooper Works Paceman vehicle is displayed during the 2013 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Tuesday, Jan. 15, 2013. The Detroit auto show runs through Jan. 27 and will display over 500 vehicles, representing the most innovative designs in the world. Photographer: David Paul Morris/Bloomberg via Getty Images

The North American International Auto Show (NAIAS) 2013

Bloomberg

Attendees view Audi AG vehicles during the 2013 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Tuesday, Jan. 15, 2013. The Detroit auto show runs through Jan. 27 and will display over 500 vehicles, representing the most innovative designs in the world. Photographer: David Paul Morris/Bloomberg via Getty Images

Attendees view Audi AG vehicles during the 2013 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Tuesday, Jan. 15, 2013. The Detroit auto show runs through Jan. 27 and will display over 500 vehicles, representing the most innovative designs in the world. Photographer: David Paul Morris/Bloomberg via Getty Images

The North American International Auto Show (NAIAS) 2013

Bloomberg

Audi AG vehicles are displayed during the 2013 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Tuesday, Jan. 15, 2013. The Detroit auto show runs through Jan. 27 and will display over 500 vehicles, representing the most innovative designs in the world. Photographer: David Paul Morris/Bloomberg via Getty Images

Audi AG vehicles are displayed during the 2013 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Tuesday, Jan. 15, 2013. The Detroit auto show runs through Jan. 27 and will display over 500 vehicles, representing the most innovative designs in the world. Photographer: David Paul Morris/Bloomberg via Getty Images

The North American International Auto Show (NAIAS) 2013

Bloomberg

The Bayerische Motoren Werke AG (BMW) Mini Cooper logo is seen on a vehicle during the 2013 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Tuesday, Jan. 15, 2013. The Detroit auto show runs through Jan. 27 and will display over 500 vehicles, representing the most innovative designs in the world. Photographer: David Paul Morris/Bloomberg via Getty Images

The Bayerische Motoren Werke AG (BMW) Mini Cooper logo is seen on a vehicle during the 2013 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Tuesday, Jan. 15, 2013. The Detroit auto show runs through Jan. 27 and will display over 500 vehicles, representing the most innovative designs in the world. Photographer: David Paul Morris/Bloomberg via Getty Images

The North American International Auto Show (NAIAS) 2013

Bloomberg

The interior of a Bayerische Motoren Werke AG (BMW) Mini Cooper vehicle is seen during the 2013 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Tuesday, Jan. 15, 2013. The Detroit auto show runs through Jan. 27 and will display over 500 vehicles, representing the most innovative designs in the world. Photographer: David Paul Morris/Bloomberg via Getty Images

The interior of a Bayerische Motoren Werke AG (BMW) Mini Cooper vehicle is seen during the 2013 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Tuesday, Jan. 15, 2013. The Detroit auto show runs through Jan. 27 and will display over 500 vehicles, representing the most innovative designs in the world. Photographer: David Paul Morris/Bloomberg via Getty Images

The North American International Auto Show (NAIAS) 2013

Bloomberg

Attendees sit in a Porsche AG vehicle during the 2013 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Tuesday, Jan. 15, 2013. The Detroit auto show runs through Jan. 27 and will display over 500 vehicles, representing the most innovative designs in the world. Photographer: David Paul Morris/Bloomberg via Getty Images

Attendees sit in a Porsche AG vehicle during the 2013 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Tuesday, Jan. 15, 2013. The Detroit auto show runs through Jan. 27 and will display over 500 vehicles, representing the most innovative designs in the world. Photographer: David Paul Morris/Bloomberg via Getty Images